Explanipedia

Any Light Particle Searches with ALPS II: first science results Open

Daniel C. Brotherton, Sandy Croatto, J. Egge, A. Ejlli, Henry Frädrich , et al. · 2025

The light-shining-through-a-wall experiment ALPS II at DESY in Hamburg searched for axions and similar lightweight particles in its first science campaign from February to May 2024. No evidence for the existence of such particles was found…

Improved Receiver Noise Calibration for ADMX Axion Search: 4.54 to 5.41 $μ$eV Open

M. Guzzetti, Dan Zhang, Craig A. Goodman, C. Hanretty, J. Sinnis , et al. · 2024

Axions are a well-motivated candidate for dark matter. The preeminent method to search for axion dark matter is known as the axion haloscope, which makes use of the conversion of axions to photons in a large magnetic field. Due to the weak…

Axion Dark Matter eXperiment around 3.3 μeV with Dine-Fischler-Srednicki-Zhitnitsky Discovery Ability Open

C. Bartram, C. Boutan, T. Braine, J. H. Buckley, T. J. Caligiure , et al. · 2024

We report the results of a QCD axion dark matter search with discovery ability for Dine-Fischler-Srednicki-Zhitnitsky (DFSZ) axions using an axion haloscope. Sub-Kelvin noise temperatures are reached with an ultra low-noise Josephson param…

Search for non-virialized axions with 3.3-4.2 $μ$eV mass at selected resolving powers Open

A. T. Hipp, A. Quiskamp, T. J. Caligiure, J. R. Gleason, Yi Han , et al. · 2024

The Axion Dark Matter eXperiment is sensitive to narrow axion flows, given axions compose a fraction of the dark matter with a non-negligible local density. Detecting these low-velocity dispersion flows requires a high spectral resolution …

Characterizing gravitational wave detector networks: from Ato cosmic explorer Open

Ish Gupta, Chaitanya Afle, K. G. Arun, Ananya Bandopadhyay, Masha Baryakhtar , et al. · 2024

Gravitational-wave observations by the laser interferometer gravitational-wave observatory (LIGO) and Virgo have provided us a new tool to explore the Universe on all scales from nuclear physics to the cosmos and have the massive potential…

Axion Dark Matter eXperiment around 3.3 μeV with Dine-Fischler-Srednicki-Zhitnitsky Discovery Ability Open

C. Bartram, C. Boutan, T. Braine, J. H. Buckley, T. J. Caligiure , et al. · 2024

We report the results of a QCD axion dark matter search with discovery ability for Dine Fischler Srednicki Zhitnitsky (DFSZ) axions using an axion haloscope. Sub-Kelvin noise temperatures are reached with an ultra low-noise Josephson param…

Nonvirialized axion search sensitive to Doppler effects in the Milky Way halo Open

Chelsea L. Bartram, T. Braine, R. Cervantes, N. Crisosto, N. Du , et al. · 2024

The Axion Dark Matter eXperiment (ADMX) has previously excluded Dine-Fischler-Srednicki- Zhitnisky (DFSZ) axions between 680-790 MHz under the assumption that the dark matter is described by the isothermal halo model. However, the precise …

Low frequency, 100–600 MHz, searches with axion cavity haloscopes Open

Sankha Subhra Chakrabarty, J. R. Gleason, Y. Han, A. T. Hipp, Miguel A. Solano , et al. · 2024

We investigate reentrant and dielectric loaded cavities for the purpose of extending the range of axion cavity haloscopes to lower masses, below the range where the Axion Dark Matter experiment (ADMX) has already searched. Reentrant and di…

Axion Dark Matter eXperiment: Run 1A analysis details Open

C. Boutan, B. H. LaRoque, E. Lentz, N. S. Oblath, M. S. Taubman , et al. · 2024

The ADMX Collaboration gathered data for its Run 1A axion dark matter search from January 2017 to June 2017, scanning with an axion haloscope over the frequency range 645–680 MHz (2.66–2.81 μeV in axion mass) at Dine-Fischler-Srednicki-Zh…

Axion Dark Matter eXperiment: Run 1A Analysis Details Open

C. Boutan, B. H. LaRoque, E. Lentz, N. S. Oblath, M. S. Taubman , et al. · 2023

The ADMX collaboration gathered data for its Run 1A axion dark matter search from January to June 2017, scanning with an axion haloscope over the frequency range 645-680 MHz (2.66-2.81 ueV in axion mass) at DFSZ sensitivity. The resulting …

Non-Virialized Axion Search Sensitive to Doppler Effects in the Milky Way Halo Open

Chelsea L. Bartram, T. Braine, R. Cervantes, N. Crisosto, N. Du , et al. · 2023

The Axion Dark Matter eXperiment (ADMX) has previously excluded Dine-Fischler-Srednicki-Zhitnisky (DFSZ) axions between 680-790 MHz under the assumption that the dark matter is described by the isothermal halo model. However, the precise n…

Search for a Dark-Matter-Induced Cosmic Axion Background with ADMX Open

T. Nitta, T. Braine, N. Du, M. Guzzetti, C. Hanretty , et al. · 2023

We report the first result of a direct search for a cosmic axion background (CaB)-a relativistic background of axions that is not dark matter-performed with the axion haloscope, the Axion Dark Matter eXperiment (ADMX). Conventional halosco…

Characterizing Gravitational Wave Detector Networks: From A$^\sharp$ to Cosmic Explorer Open

Ish Gupta, Chaitanya Afle, K. G. Arun, Ananya Bandopadhyay, Masha Baryakhtar , et al. · 2023

Gravitational-wave observations by the Laser Interferometer Gravitational-Wave Observatory (LIGO) and Virgo have provided us a new tool to explore the Universe on all scales from nuclear physics to the cosmos and have the massive potential…

Identification of Resonant Frequencies in LIGO-like Suspension with Finite-Element Modeling Open

O. Sauter, Ninad Bhagwat, John Conklin, D. B. Tanner · 2023

Following the upgrades to Advanced LIGO (aLIGO), measurements were made of the detector suspensions' frequency response characteristics. While most resonant frequencies could be identified with simple mechanical models, such as the fiber v…

Cosmic Explorer: A Submission to the NSF MPSAC ngGW Subcommittee Open

Matthew Evans, A. Corsi, Chaitanya Afle, A. Ananyeva, K. G. Arun , et al. · 2023

Gravitational-wave astronomy has revolutionized humanity's view of the universe, a revolution driven by observations that no other field can make. This white paper describes an observatory that builds on decades of investment by the Nation…

Optical conductivity and vibrational spectra of the narrow-gap semiconductor Open

C. Martin, V. A. Martinez, M. Opačić, Sanja Djurdjić Mijin, Petar Mitrić , et al. · 2023

Intermetallic narrow-gap semiconductors have been intensively explored due to their large thermoelectric power at low temperatures and a possible role of strong electronic correlations in their unusual thermodynamic and transport propertie…

Patient-Reported Outcomes in Randomized Controlled Trials Pertaining to Distal Radius Fractures: an Evaluation of the Reporting Open

D. B. Tanner, Jaydeep Dhillon, Ryan McIntire, Philo Waters, Samuel Shepard , et al. · 2023

Background Clear and complete reporting of clinical trial publications are critical for adequate reader appraisal. Given the proliferation of patient-reported outcomes in clinical trials, an investigation of their reporting is warranted. O…

Dark matter axion search using a Josephson Traveling wave parametric amplifier Open

C. Bartram, T. Braine, R. Cervantes, N. Crisosto, N. Du , et al. · 2023

We describe the first implementation of a Josephson Traveling Wave Parametric Amplifier (JTWPA) in an axion dark matter search. The operation of the JTWPA for a period of about two weeks achieved sensitivity to axion-like particle dark mat…

Search for a dark-matter induced Cosmic Axion Background with ADMX Open

T. Nitta, T Braine, N. Du, M. Guzzetti, C. Hanretty , et al. · 2023

We report the first result of a direct search for a Cosmic ${\it axion}$ Background (C$a$B) - a relativistic background of axions that is not dark matter - performed with the axion haloscope, the Axion Dark Matter eXperiment (ADMX). Conven…

Optical conductivity and vibrational spectra of the narrow-gap semiconductor FeGa$_3$ Open

C. Martin, V. A. Martinez, M. Opačić, S. Djurdjić-Mijin, P. Mitrić , et al. · 2023

Intermetallic narrow-gap semiconductors have been intensively explored due to their large thermoelectric power at low temperatures and a possible role of strong electronic correlations in their unusual thermodynamic and transport propertie…

Comment on essd-2022-143 Open

D. B. Tanner · 2022

Abstract. Structure-from-motion (SfM) photogrammetry has become an important tool for quantitative characterisation of outcrops. Digital outcrop models (DOMs) allow for the mapping of stratigraphy and discontinuous structu…

A proposed search for dark-matter axions in the 0. 6--16. mu. eV range Open

K. van Bibber, P. Sikivie, N S Sullivan, D. B. Tanner, Matthew S. Turner , et al. · 2022

A proposed experiment is described to search for dark-matter axions in the mass range 0.6--16 {mu}eV. The method is based on the Primakoff conversion of axions into monochromatic microwave photons inside a tunable microwave cavity in a lar…

Design of the ALPS II optical system Open

M. Diaz-Ortiz, J. R. Gleason, H. Grote, Ayman Hallal, M. T. Hartman , et al. · 2022

Axion Dark Matter Experiment: Detailed design and operations Open

Rakshya Khatiwada, D. Bowring, A. Chou, A. Sonnenschein, W. C. Wester , et al. · 2021

Axion dark matter experiment ultra-low noise haloscope technology has enabled the successful completion of two science runs (1A and 1B) that looked for dark matter axions in the 2.66–3.1 μeV mass range with Dine–Fischler–Srednicki–Zhitnisk…

Dark Matter Axion Search Using a Josephson Traveling Wave Parametric Amplifier Open

C. Bartram, T. Braine, R. Cervantes, N. Crisosto, N. Du , et al. · 2021

We present a new exclusion bound of axion-like particle dark matter with axion-photon couplings above $\mathrm{10^{-13}}$ $\mathrm{GeV^{-1}}$ over the frequency range 4796.7--4799.5 MHz, corresponding to a narrow range of axion masses cent…

Search for "Invisible" Axion Dark Matter in the $3.3\text{-}4.2~{\mu}$eV Mass Range Open

C. Bartram, T. Braine, Eric Burns, R. Cervantes, N. Crisosto , et al. · 2021

We report the results from a haloscope search for axion dark matter in the $3.3\text{-}4.2~{\mu}$eV mass range. This search excludes the axion-photon coupling predicted by one of the benchmark models of invisible axion dark matter, the KSV…

Axion dark matter experiment: Run 1B analysis details Open

C. Bartram, T. Braine, R. Cervantes, N. Crisosto, N. Du , et al. · 2021

Funder: \n U.S. Department of Energy\n http://dx.doi.org/10.13039/100000015

Design of the ALPS II Optical System Open

M. T. Hartman, A. Lindner, R. C. G. Smith, Aaron Spector, L.‐W. Wei , et al. · 2020

The Any Light Particle Search II (ALPS II) is an experiment currently being built at DESY in Hamburg, Germany, that will use a light-shining-through-a-wall (LSW) approach to search for axion-like particles. ALPS II represents a significant…

Far-infrared absorption of undoped and Br-doped carbon nanofiber powder in stacked-cup cone configuration Open

Naween Anand, A. F. Hebard, D. B. Tanner · 2020

We carried out room-temperature far-infrared (40--650~cm$^{-1}$) transmission measurements on undoped and bromine-doped powder samples of carbon nanofibers in stacked-cup cone geometry. The transmission spectra of both doped and undoped sa…

Neutrino Cross Sections II: Neutrino Boogaloo. UF Task P3, Accelerator-Based Experimental Neutrino Physics. Final Report Open

John Martin Yelton, G. Mitselmakher, A. Korytov, P. Avery, Ivan Furic , et al. · 2020

We report on progress in a series of different directions within high energy physics research. 1. Neutrino research in hardware and software on the Minerva and MiniBooNE experiments 2. Experimental particle physics at the hadron colliders,…

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